Tehran slams negative remarks by US

Iranian Foreign Ministry Spokeswoman Marzieh Afkham said that certain negative remarks by some US circles about the ongoing nuclear talks are unproductive.

"Some hardliners in the US have reacted angrily to the upbeat mood of the latest round of expert-level talks between Iran and the P5+1," she said.

"These views are based on incomplete knowledge and incorrect assumptions," Afkham said.

"Questioning the talks while they are still in progress will undermine the negotiations," she added.

Afkham went on to note that Iran has showed that threats and pressure against the nation are ineffective.

"If the talks are based on mutual respect and equal footing together with respecting rights of Iranians, they will bear results," she explained.

The three-day technical talks wrapped up on Friday. They'll be followed by discussions between senior negotiators from Iran and the P5+1 that comprises the US, Britain, France, Russia, China and Germany.

The negotiations will start in Vienna on Tuesday. The talks are aimed at reaching a final agreement on Iran's nuclear program.

An interim six-month deal reached in November called for limiting Iran's nuclear activities in return for lifting some sanctions.